1 Corinthians 4:21
Let us then flee this strange and craving (ξένην καὶ κενὴν: a play on the sound of the words,) disease; let us flee the root of all evils; let us flee that which is present hell; for it is a hell, the desire of these things. Only just lay open the soul of each, of him who despises wealth and of him who does not so; and you will see that the one is like the distracted, choosing neither to hear nor see any thing: the other, like a harbor free from waves: and he is the friend of all, as the other is the enemy. For whether one take any thing of his, it gives him no annoyance; or if whether, on the contrary, one give him anything, it puffs him not up; but there is a certain freedom about him with entire security. The one is forced to flatter and feign before all; the other, to no man.
If now to be fond of money is to be both poor and timid and a dissembler and a hypocrite and to be full of fears and great penal anguish and chastisement: while he that despises wealth has all the contrary enjoyments: is it not quite plain that virtue is the more pleasant?
Now we might have gone through all the other evils also whereby it is shown that there is no vice which has pleasure in it, had we not spoken before so much at large.
Wherefore knowing these things, let us choose virtue; to the end that we may both enjoy such pleasure as is here, and may attain unto the blessings which are to come, through the grace and loving-kindness, etc. etc.
Source: Homilies on First Corinthians (New Advent)